A new documentary claims that Nick Reiner's weight gain and a change in medication may have contributed to the brutal killings of his parents. However, the exact circumstances and motivations behind the killings are still unclear, with some outlets suggesting that meth use and mental health issues may have also played a role. The case against Nick Reiner, who is currently in jail, continues to unfold with various reports and claims emerging about his state of mind and potential factors leading up to the alleged murders.